The British laboratory AstraZeneca expects to be able to supply a billion doses of a potential Covid-19 vaccine this year and next.
The US Department of Health has ordered 300 million
The US Department of Health has said it has ordered 300 million doses of the vaccine under development, with hopes of getting it from October.
AstraZeneca said it would soon know the results of initial clinical trials. If successful, the laboratory will move on to a new phase of testing in several countries.
There is currently no validated vaccine or treatment for COVID-19, the disease caused by the new coronavirus that appeared in December in China.
The large laboratories, including Sanofi, each carry out their own research and are at different stages in the development of such a vaccine.